Download 1. Getting Started Using UM: Simulating Hybrid Models

Universal Mechanism 5.0
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Getting Started: UM FEM
2.1. Preparing ANSYS environment
We will use ANSYS software for preparing data for simulation of dynamics of
elastic body. After creating FEA model a calculation of the static and eigen-modes
starts. Macro um.mac is used for such a calculation. Then ANSYS_UM program
starts. This program translates data, that are produced by um.mac into UM format.
Copy the um.mac file from {um_root}\bin to ANSYS default directory for
macros. It is usually the .\docu directory in ANSYS 5.0, .\apdl in ANSYS 7.0-9.0
root directory. Otherwise you need to set search path with the ANSYS command
/PSEARCH,Path_to_macro
After preparing data the um.mac macros runs the external ansys_um.exe program
for subsequent analysis of obtained data. The ansys_um.exe is situated in the
{um_root}\bin directory. You need to open the um.mac in any text editor and edit
the path to the ansys_um.exe program in the last line of the macros. Set full path
to the ansys_um.exe as the parameter of the /sys command. For example,
/sys,c:\um\bin\ansys_um.exe
Note 1.
If the full path to the ansys_um.exe program contains space(s) then
use inverted commas. For example,
/sys,”c:\universal mechanism\bin\ansys_um.exe”
Note 2.
Path to the ansys_um.exe program should contain the Latin letters
only.